<P>The Publishing_and_Printing sector category covers two distinct, yet very interdependent industries. <P> <b>Publishing:</b> Entities engaged in publishing and distributing newspapers, magazines, other periodicals, and books, as well as electronic materials. <P> <b>Printing:</b> Establishments involved in the manufacture, production, and distribution of print products, such as newspapers, books, periodicals, business forms, greeting cards, and other materials. This includes companies that perform perform support activities, such as bookbinding, platemaking services, and data imaging. This subsector includes printing on clothing because the production process for that activity is printing, not clothing manufacturing. <P> Publishing of printed and electronic products is the main theme of this category. All printing sites are colocated under the Printing subcategory. <P> <i>(Source: This category description is based on the North American Industry Classification System (NAICS), 1997).</i>